Comparing your machine’s IP address to that reported by a website may result in a surprising difference. I’ll explain why that is and why it’s a good thing.
DHCP stands for Dynamic Host Configuration Protocol, and is how computers request and receive “dynamic” IP addresses as well as additional configuration information.
Hubs, switches, and routers are all computer networking devices with varying capabilities. Unfortunately, the terms are also often misused.
If there is a conflict with your IP address, it could result in only one of the machines on your network working at a time.